Year | Value | 2023 | 556,321,201 | 2022 | 551,710,602 | 2021 | 565,717,977 | 2020 | 563,026,706 | 2019 | 568,781,099 | 2018 | 564,162,894 | 2017 | 559,934,865 | 2016 | 555,921,295 | 2015 | 551,054,611 | 2014 | 548,150,421 | 2013 | 545,245,576 | 2012 | 542,838,291 | 2011 | 539,686,337 | 2010 | 539,010,377 | 2009 | 538,227,393 | 2008 | 537,121,013 | 2007 | 532,320,263 | 2006 | 527,550,555 | 2005 | 521,982,593 | 2004 | 516,663,977 | 2003 | 513,273,976 | 2002 | 509,868,288 | 2001 | 506,100,088 | 2000 | 503,863,388 | 1999 | 499,733,372 | 1998 | 495,810,926 | 1997 | 492,728,205 | 1996 | 487,823,732 | 1995 | 483,121,724 | 1994 | 479,979,184 | 1993 | 475,968,134 | 1992 | 473,881,993 | 1991 | 470,876,495 |
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